Air quality in North Castle
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
4.7 µg/m³
WHO guideline 15
PM10
4.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 4.7 µg/m³
34Good
10:00 AM
💨
PM2.5 4.8 µg/m³
41Good
11:00 AM
💨
PM2.5 4.6 µg/m³
47Good
12:00 PM
💨
PM2.5 4.9 µg/m³
49Good
1:00 PM
💨
PM2.5 5.5 µg/m³
48Good
2:00 PM
💨
PM2.5 5.6 µg/m³
48Good
3:00 PM
💨
PM2.5 5.6 µg/m³
50Good
4:00 PM
💨
PM2.5 6 µg/m³
49Good
5:00 PM
💨
PM2.5 6.7 µg/m³
46Good
6:00 PM
💨
PM2.5 7.5 µg/m³
42Good
7:00 PM
💨
PM2.5 8.7 µg/m³
37Good
8:00 PM
💨
PM2.5 10.6 µg/m³
44Good
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
80